Improvement in machinery for the manufacture of metal tubes



, 6Sheets-Sheet 1. E. PEYTON & T.B()URNE. Machinery for the Manufactureof Metal-Tubes.

Patented iuly1, 1879.

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PEYTON & T.B 0URN E.- Machinery for the Manufacture of Metal-Tubes.

No. 217,141. 1 Patented-luly1,1879.

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Pafented .Iuly1, 1879.

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6 Sheets-Sheet 6.

-E PEYTON & T.BOURNE. Machinery for the Manufacture of Metal-TubesPatented Ju|y1, 1879.

a) fgfizmzlbrs /Z @aL Wm ybzessiysge UNITED STATES PATENT- FFICE EDWARDPEYTON AND THOMAS BOURNE, OF BOBDESLEY, COUNTY OF WARWICK, ENGLAND. I

IMPROVEMENT IN MACHINERY FOR THE MANUFACTURE METAL TUBES.

Specification formingpart of Letters Patent No. 217,141, dated July 1,1879 application filed April 21, 1879 patented in England, March 27,1877.

To all whom it may concern: I

Be it known that we, EDWARD PEYTON and THOMAS BOURNE, both of Bordesley,in the county of Warwick, England, have invented new and usefulImprovements in Machinery for the Manufacture of Welded and otherWrought-Iron, Steel, and other Metal Tubes, which improvements are fullyset forth in the following specification, reference being had to theaccompanying drawings.

This invention relates to improvements in the machinery for themanufacture of welded and other wrought-iron and steel and other tubes,wherein a series of successive operations are combined in one machine orset of machines, whereby a finished welded or other wrought-iron orsteel tube is produced from a heated plate or skelp in its passagethrough the machine, or other tubes may be otherwise produced.

In the manufacture of the welded tube the heated plate or skelp (whichmay advantageously have one end, prexiously to its being heated, bent upinto a U or trough shape) is fed or guided into the machine between aset of three rolls, the peripheries of which, wherethey come together,form a U or trough shaped passage or opening, into and through which theplate or skelp at a welding-heat is passed.

Two of the first set of rollers are mounted on vertical axes, the thirdroller being mounted upon the end of a horizontal axis, and the threerollers are driven "by suitable gearing so as to run at or near the samesurface-speed.

The trough-shaped plate or skelp is guided in its passage to a secondset of four rolls arranged in connection with a mandrel, as hereinafterdescribed, and shown in the drawings annexed. The rolls force togetherthe lips or edges of the trough-shaped plate or skelp and weld themfirmly together. The tube, thus far welded and formed in its progress,is guided between a pair of grooved rolls, by which it is furthercompressed and delivered from the machine in a complete and finishedcondition; or, if desired, it may be passed through other pairs or setsof finishing-rolls.

In order that our improvements may be clearly understood and readilyperformed or carried into practice, we will proceed to describe thedrawings hereto annexed.

Referring to the drawings, Figure 1 shows an end view, Fig. 2 a verticalsection, Fig. 3 a plan, Fig. 4 a plan in section, and Fig. 5 a sideview, of a complete set of machineryarranged and constructed inaccordance with our invention for manufacturing welded wroughtiron,steel, or other tubes.

a a a. is the first set of three rolls, between which the plate or skelpat a welding-heat for forming a tube is fed or guided.

The end of the skelp should be previously bent up into a U or troughshape, roughly corresponding with the space formed by the peripheries ofthe rolls a a a where they come together.

From the rolls a a a the plate thus bent into a trough shape isconducted by guidingsurfaces into and between the second set of fourrolls, 1) b and B B.

The edges or lips of the plate or skelp are closed in upon and aroundthe enlarged taperiu g head of the mandrel b",-carried by an arm fixedto the bracket b on the framin g of the machine.

The edges of the plate or skelp, as it passes between the rolls 1) b andB B, are thus effectually welded together upon the mandrel b", so as toform a welded tube.

- The two upper rolls, B B, are set so as to act at an inclination toone another, and they produce a very important efl'ect on the lips oredges of the bent plate or skelp.

'The sides of the skelp are so shaped and fed in by the feeding-rollsthat they are relatively of the same shape and size, and, when the lipsor edges are closed in and pressed bythe inclined rolls B B, the metalis confined, and the particles of one lip are forced into and among theparticles of the other lip, so as to produce a perfect weld in a mannerthat has not hitherto been practicable.-

The tube so formedby the combined action of the four rolls 1) I) and B Bis further compressed and finished in its passage between a third set orpair of vertical rolls, 0 c, from which it passes onto and between thefourth set or pair of horizontal rolls, (7, and isfinished fit for use.Other pairs of rolls may also be employed when it is thought advisableto do so.

7 Motion is communicated to the four sets of rolls a, b B, 0, and d inthe following manner: l is a bevel-wheel fixed on the axis 0, whichreceives motion from a steam-engine or other motive power. 0 is abevel-wheel fixed on the upper end of the axis 0 which gives motion to abevel-wheel, 0-", fixed on the axis of the lower finishing roll, 0. Thetoothed wheel 2, fixed on the axis 0, gives motion to the toothed wheel3, fixed on the axis 12 of one of the horizontal rolls b. The toothedwheel 3also gives motion to the toothed wheel 4, fixed on the axis ofthe other horizontal roll b, to give motion thereto.

48 is an intermediate toothed wheel, which gives motion to the toothedwheel 5, fixed on the axis a of one of the horizontal feed-rolls a. Thetoothed wheel 5 also gives motion to the toothed wheel 6, fixed on theaxis a of the other horizontal feed-roll a.

The vertical feed-roll a is mounted on the horizontal axis a carried bythe brackets to on the slide a which can be raised and lowered by thehand-wheel a, so as to adjust the position of the vertical feed-roller aas required. The feed-roller a is driven by the bevel-wheel a fixed onthe upper end of the axis a taking into thebevel-wheel a", fixed on theaxis a of the roll a".

a a are adjustable stops or guides, arranged in front of the feed-rollsa. a is a guide-roller, for guiding the bent'plate from the rolls a tothe rolls 1) B. The two upper v welding-rolls, B B, placed at an angle,are mounted and turn freely on studs carried by the sliding bracket 1),which is capable of adjustment, as shown.

A guide, I), as shown in Fig. 6, may be arranged between the angleformed by the upper pair of welding-rolls, b, if desired. The tube, asit leaves the welding-rolls b, is conducted by the guides c between apair of vertical finishin g-rolls, 0, the lower one of which receivesmotion from the bevel-wheel 0 on the axis 0 taking into the bevel-wheel0 fixed on the axis of the lower roller, 0, as previously From the roll0 the welded tube described. passes forward between the pair ofhorizontal delivering-rolls d d, which are driven in the followingmanner: The toothed wheel 2 on the axis 0 takes into and drives thetoothed wheel 7, fixed 011 the vertical axis cl of one of thedelivering-rolls d, and the toothed wheel 7 takes into and drives thetoothed wheel 8, fixed on the axis d of the other deliveringroll d, aswill be readily understood on examining the drawings.

We find it advantageous in some cases to shape the orifice formed by theperipheries of the four welding-rolls b b and B B as indicated in Fig. 2of the drawings, whereby the thickness of the metal is somewhatincreased at the joint, and a more perfect joint is thereby made at thewelding-point.

111 the manufacture of some descriptions of welded tubes the mandrel maybe dispensed with, the welding being efi'ected without internalresistance; and the tubes may also be formed with lap in place of buttjoints, as previously described, in which case one side of thetrough-shaped skelp formed by the feeding-rolls is made somewhat higherthan the other, and the welding-rolls must be modified so as to form alap-joint.

The machinery previously described may be employed for manufacturingiron, steel, or other metal tubes, the joints of which are not weldedeither from heated or cold plates or strips of metal.

Although we have described a combination of four welding-rolls, which wehave found may be most advantageously used with our feeding-rolls, othercombinations of weldingrolls-as, for instance, two horizontal and onevertical rollmay in some cases also be used therewith.

Having thus described the nature of our improvements, and the manner ofperforming or carrying the same into practice, we would remark that wedo not intend to claim separately any of the parts which are well knownand in common use, and we are aware that it is not new to employwelding-rolls to weld the joints of tubes, and we make no general claimto such rolls; but

What we claim is- 1. The shapingand feeding rollers a a and a andwelding-rolls b b and B B jointly with the mandrel b", the wholeconstructed and operating substantially as hereinabove shown anddescribed.

2. The improved arrangement and combination of the three feed-rolls a aand a", for shaping the plate or skelp and feeding it into welding-rollsor machinery for the manufactureof welded and other wrought-iron andsteel or other tubes, substantially as described.

3. The improved arrangement and combination of the four welding orclosing rolls 1) b and B B, two of them being inclined to one anotherand to the other two, which are horizontal, for welding or closing thejoint in the manufacture of welded and other wrought-iron or steel orother tubes, substantially as hereinbefore described.

EDWARD PEYTON. THOMAS BOURNE.

'Witnesses THOMAS MARSTON, 'GEORGE .WYATT.

